January 21, 2014

Revision: REL

Tecumseh Compressor Company

Hermetic Condensing Units

Model: AJA7494ZXDXC BoM: 2B1106-1 R-404a 1 1/4 HP Air Cooled

Model

AJA7494ZXDXC

L

24.0

Dimensions, inches

W

19.4

H

16.1

CH

12.0

Line Connection* Pumpdown Air Oil Gr.

Ch Wt.

Suction Liquid 90



F 90% CFM Oz. Lbs.

5/8” F 3/8” F 10.8 lbs 840 27 100

* F = Flare, S = Solder, RF or RS = Rotolock with Flare or Solder Connections, C = Compression Fitting

Factory charge: 20 PSIG Nitrogen – MUST BE EVACUATED

Ambient Temperatures

Evaporator T, 80°F 90°F 100°F 110°F

°F PSIG BTUH Watts Cond T BTUH Watts Cond T BTUH Watts Cond T BTUH Watts Cond T

-10 23.6 5720 1284 96 4881 1273 104 4085 1230 112 3423 1193 120

-5 27.9

0 32.6

5 37.7

10 43.2

15 49.1

6551

7355

8152

8963

9806

1352

1435

1529

1630

1735

98

100

102

105

107

5627

6352

7074

7810

8578

1373

1473

1573

1674

1777

106

108

110

113

115

4816

5500

6158

6813

7485

1345

1459

1573

1686

1799

114

116

118

120

123

4023

4607

5188

5776

6384

1322

1442

1558

1672

1788

122

125

127

129

131

20 55.4 10701 1842

25 62.2 11666 1945

30 69.6 12720 2043

110

112

115

9396 1883

10279 1993

118

120

8198 1913

8972 2027

11247 2107 123 9830 2142

60 Hz Performance

Return gas temp. 40



F, 5



F sub cooling

125

127

130

7025 1910

7709 2039

8451 2180

133

135

137

Specifications/ Parts:

Model

Unit Bill of Material

Nominal Volts-Hz-Ph

Refrigeration Range

Design Pressure Low

Design Pressure High

AJA7494ZXDXC

2B1106-1

208-230-60-1

-10° F to +30° F

181

450

Voltage Range 187 to 253

Min. Circuit Ampacity 12.2

Max. Fuse Size (amps) 20

Compressor Model AJA7494ZXD

Comp. Bill of Material AJ202ET-188-P2

Compressor RLA/LRA 9.2 / 54.0

Overload INTERNAL

Relay 820RVAM25

Run Capacitor

Run Capacitor Rating

85PR370F20

25 MFD @ 370V

Start Capacitor 85PS250D84

Start Capacitor Rating 216-259 MFD @ 250V

Capacitor Cabinet Assy. AE1170-043A

Unit Drawing

Wiring Diagram

DGU1893-48

90657-9

Electrical Diagram

Fan Motor

Fan Motor RLA

Fan Blade

Fan Guard

Fan Shroud

810F050C20

0.7

51533-3

70831

70727-2

Low Pressure Control 84026-2

Dual Pressure Control N/A

Condenser 50797-4

Receiver Tank

Liquid Valve

51081-1

31578-1

Rotolock Valve Gasket 30334

Suction Valve 31071-2

January 21, 2014

Revision: REL